[AMD Official Use Only - Internal Distribution Only]
Dear Experts,
Until recently, I was using openMPI3.1.1 to run single
node 128 ranks MPI application on Ubuntu18.04 and Ubuntu19.04.
But, now the OS on these machines are upgraded to Ubuntu20.04, and I have been
observing program hangs with openMPI3.1.1 version.
So, I tried with openMPI4.0.5 version - The program ran properly without any
issues but there is a performance regression in my application.
Can I know the stable openMPI version recommended for Ubuntu20.04 that has no
known regression compared to v3.1.1.
With Regards,
S. Biplab Raut
